Product Overview
Caddock Electronics' MP900 and MP9000 Series Kool-Pak Power Film Resistors are high-performance power resistors designed for demanding applications. These resistors feature a non-inductive design and an exposed ceramic heat-dissipating mounting surface, enabling efficient thermal management similar to power semiconductors. Available in TO-126, TO-220, and TO-247 style packages, they offer a wide resistance range from 0.010 ohm to 1 K ohm and power ratings up to 100 Watts, depending on the model and case temperature. They are constructed using Caddock's Micronox resistance film fired onto a flat ceramic substrate, encapsulated in a molded body with the ceramic exposed for direct mounting to a heat sink. These resistors are ideal for applications requiring robust power handling and precise thermal design.
Product Attributes
- Brand: Caddock Electronics, Inc.
- Series: MP900 and MP9000 Series
- Technology: Kool-Pak Power Film Resistors
- Resistance Material: Micronox resistance film
- Substrate: Ceramic
- Mounting Surface: Exposed Ceramic Heat Dissipating Mounting Surface
- Design: Non-Inductive
- Packaging: Plastic shipping tubes (50 pieces/tube for MP915, MP916, MP925, MP930; 25 pieces/tube for MP9100)
- Origin: USA (implied by address)
Technical Specifications
| Model | Package Style | Power Rating (at +25C Case) | Max. Case Temperature | Resistance Range | Thermal Resistance (RJC) | Typical Inductance | Dielectric Strength | Insulation Resistance | Load Stability (2000 hrs) | Momentary Overload (5 sec) | Moisture Resistance (Mil-Std-202, M106) | Thermal Shock (Mil-Std-202, M107, Cond. F) | Shock (Mil-Std-202, M213, Cond. I) | Vibration (Mil-Std-202, M204, Cond. D) | Terminal Strength (Mil-Std-202, M211, Cond. A) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MP915 | TO-126 | Up to 30 Watts* | 150C | 0.010 to 100 K | 8.33C/Watt | 10nH typical | 1500 VrmsAC | 10,000 Megohms min. | (1.0% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.4% + 0.0005 ) max. | (0.4% + 0.0005 ) max. | (0.2% + 0.0005 ) max. |
| MP916 | TO-220 | 25 Watts* | 150C | 0.020 to 4.99 K | 7.81C/Watt | 10nH typical | 1500 VrmsAC | 10,000 Megohms min. | (1.0% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.4% + 0.0005 ) max. | (0.4% + 0.0005 ) max. | (0.2% + 0.0005 ) max. |
| MP925 | TO-220 | 25 Watts* | 150C | 0.020 to 4.99 K | 7.81C/Watt | 10nH typical | 1500 VrmsAC | 10,000 Megohms min. | (1.0% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.4% + 0.0005 ) max. | (0.4% + 0.0005 ) max. | (0.2% + 0.0005 ) max. |
| MP930 | TO-220 | 25 Watts* | 150C | 0.020 to 4.99 K | 7.81C/Watt | 10nH typical | 1500 VrmsAC | 10,000 Megohms min. | (1.0% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.4% + 0.0005 ) max. | (0.4% + 0.0005 ) max. | (0.2% + 0.0005 ) max. |
| MP9100 | TO-247 | 100 Watts* | 175C | 0.050 to 100 | 1.50C/Watt | 20nH typical | 1500 VrmsAC | 10,000 Megohms min. | (1.0% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.5% + 0.0005 ) max. | (0.4% + 0.0005 ) max. | (0.4% + 0.0005 ) max. | (0.2% + 0.0005 ) max. |
* Derating using Case Temperature (Tc). Power rating is dependent upon case temperature.
Standard Resistance Values:
- MP915, MP925, MP930: 0.010 to 100 K (1% Standard, 5% and 20% available)
- MP916: 0.020 to 4.99 K (5% Standard, 20% available)
- MP9100: 0.050 to 100 (1% Standard)
Temperature Coefficient (TC) referenced to +25C, R taken at max. temperature:
- MP915, MP916, MP925, MP930 (at 150C):
- 0.50 and above: -20 to +80 ppm/C
- 0.050 to 0.49 : 0 to +200 ppm/C
- 0.020 to 0.049 : 0 to +300 ppm/C
- 0.010 to 0.019 : 0 to +500 ppm/C
- MP9100 (at 175C):
- 0.50 and above: -20 to +80 ppm/C
- 0.050 to 0.49 : 0 to +150 ppm/C
Operating Temperature: -55C to TMAX
Ordering Information Example: MP915 - 50.0 - 1% (Model Number - Resistor Value - Tolerance)
2411041649_Caddock-MP930-0-10-1-_C712691.pdf
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